Genetic Variant TACR3:p.Ala449Pro (chr4-103589735-C-G) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001059.3(TACR3):c.1345G>C(p.Ala449Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,666 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A449T) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

TACR3
NM_001059.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.19

Publications

0 publications found

Variant links:

Genes affected

TACR3 (HGNC:11528): (tachykinin receptor 3) This gene belongs to a family of genes that function as receptors for tachykinins. Receptor affinities are specified by variations in the 5'-end of the sequence. The receptors belonging to this family are characterized by interactions with G proteins and 7 hydrophobic transmembrane regions. This gene encodes the receptor for the tachykinin neurokinin 3, also referred to as neurokinin B. [provided by RefSeq, Jul 2008]

TACR3 links:

TACR3-AS1 (HGNC:55593): (TACR3 antisense RNA 1)

TACR3-AS1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.11791557).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TACR3	NM_001059.3 link	c.1345G>C	p.Ala449Pro	missense_variant	Exon 5 of 5	ENST00000304883.3	NP_001050.1	P29371
TACR3-AS1	NR_186501.1 link	n.190-1472C>G		intron_variant	Intron 2 of 4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
TACR3	ENST00000304883.3 link	c.1345G>C	p.Ala449Pro	missense_variant	Exon 5 of 5	1	NM_001059.3	ENSP00000303325.2	P29371
TACR3-AS1	ENST00000502936.1 link	n.190-1472C>G		intron_variant	Intron 2 of 4	2
TACR3-AS1	ENST00000512401.5 link	n.292-1472C>G		intron_variant	Intron 3 of 4	2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461666

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727132

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33456

American (AMR)

AF:

0.00

AC:

AN:

44714

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26126

East Asian (EAS)

AF:

0.00

AC:

AN:

39688

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111864

Other (OTH)

AF:

0.00

AC:

AN:

60378

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.081

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Benign

-0.44

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.10

Eigen

Benign

-0.32

Eigen_PC

Benign

-0.15

FATHMM_MKL

Uncertain

0.92

LIST_S2

Benign

0.14

M_CAP

Benign

0.027

MetaRNN

Benign

0.12

MetaSVM

Benign

-0.99

MutationAssessor

Benign

0.69

PhyloP100

2.2

PrimateAI

Benign

0.34

PROVEAN

Benign

-0.020

REVEL

Benign

0.058

Sift

Benign

0.13

Sift4G

Benign

0.24

Polyphen

0.34

Vest4

0.089

MutPred

0.15

Gain of glycosylation at S444 (P = 0.0056);

MVP

0.87

MPC

0.47

ClinPred

0.60

GERP RS

4.5

Varity_R

0.088

gMVP

0.49

Mutation Taster

=88/12

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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4-103589735-C-G

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over